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Experimental investigation and sustainability assessment to evaluate environmentally clean machining of 15-5 PH stainless steel
Journal of Manufacturing Processes ( IF 6.1 ) Pub Date : 2020-06-09 , DOI: 10.1016/j.jmapro.2020.05.016
Navneet Khanna , Prassan Shah , Radoslaw W. Maruda , Grzegorz M. Krolczyk , Hussien Hegab

This paper aims to present the environmental issues associated with conventional cutting fluids strategy and find out alternative solutions in terms of environmentally friendly cooling and lubrication techniques with high machining performance. In this view, this paper analyses the cleaner cooling and lubrication techniques, namely dry, MQL, and cryogenic machining with conventional lubrication technique, namely wet machining to reduce the usage of non-renewable energy source and recycle process without losing the productivity. In this context, cutting force, co-efficient of friction (CoF), energy consumption, surface roughness parameters and chip reduction coefficient (CRC) are measured for dry, wet, MQL, and cryogenic machining of 15−5 Precipitation Hardened Stainless Steel (PHSS) with variation in cutting speed and feed rate. Also, a previously applied sustainability assessment algorithm has been implemented to study the effectiveness of these cooling and lubrication strategies. The sustainability assessment includes machining performance as well as sustainable indicators (i.e., waste management, environmental impact as well as operational health and safety) in a single integrated analysis to achieve a balance between the machining efficiency and sustainability effectiveness. At higher value of cutting speed (199 m/min) and feed rate (0.333 mm/rev), 29.26 %, 52.68 % and 53.33 % increment in the value of cutting force were observed in dry, wet and MQL machining in comparison with cryogenic machining respectively. The higher values of CoF and CRC found in dry machining suggest more friction and amount of plastic deformation respectively as compared to other cutting fluid strategies. The 6.27 % higher value of energy consumption was observed in dry machining as compared to other cutting environments. At higher cutting parameters, in cryogenic machining, 6.76 %, 1.8 % and 26.62 % lower surface roughness (Ra) were observed as compared to dry, wet and MQL machining, respectively.



中文翻译:

对15-5 PH不锈钢进行环境清洁加工的实验研究和可持续性评估

本文旨在介绍与常规切削液策略相关的环境问题,并在具有高机加工性能的环保冷却和润滑技术方面找到替代解决方案。因此,本文分析了较清洁的冷却和润滑技术,即干式,MQL和采用常规润滑技术的低温加工,即湿式加工,以减少不可再生能源的使用和回收过程,而不会降低生产率。在这种情况下,测量了15-5沉淀硬化不锈钢的干式,湿式,MQL和低温加工的切削力,摩擦系数(CoF),能耗,表面粗糙度参数和切屑减小系数(CRC)( PHSS),但切割速度和进给速度会有所不同。也,已经实施了先前应用的可持续性评估算法,以研究这些冷却和润滑策略的有效性。可持续性评估在单个综合分析中包括加工性能以及可持续性指标(即废物管理,环境影响以及操作健康与安全),以在加工效率和可持续性有效性之间取得平衡。在切削速度(199 m / min)和进给速度(0.333 mm / rev)较高的值下,与低温相比,在干式,湿式和MQL加工中观察到切削力值分别增加29.26%,52.68%和53.33%。分别加工。与其他切削液策略相比,干式加工中发现的较高的CoF和CRC值分别表明摩擦和塑性变形量更大。与其他切削环境相比,在干式加工中观察到的能耗值高出6.27%。在较高的切削参数下,在低温加工中,表面粗糙度降低了6.76%,1.8%和26.62%(R与干法,湿法和MQL加工相比,分别观察到a)。

更新日期:2020-06-09
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